Home / 405,172,624.96-559,138,432.80-219,533,786.56

Finding the Fourth Proportional to 405,172,624.96, 559,138,432.80 and 219,533,786.56

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Solution

The fourth proportional to 405,172,624.96, 559,138,432.80 and 219,533,786.56 is: 302,956,739.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,172,624.96 : 559,138,432.80 = 219,533,786.56 : x
  2. Step 2: Convert to fraction form
    405,172,624.96/559,138,432.80 = 219,533,786.56/x
  3. Step 3: Cross multiply
    405,172,624.96x = 559,138,432.80 × 219,533,786.56
  4. Step 4: Simplify right side
    405,172,624.96x = 122,749,777,363,808,096
  5. Step 5: Solve for x
    x = 122,749,777,363,808,096/405,172,624.96
  6. Step 6: Final answer
    x = 302,956,739.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.